/* variables*/

/* styles */

nav {
  box-shadow: 5px 0 15px rgba(0, 0, 0, 0.5);
  width: 100%;
  position: absolute;
  left: 0;
  bottom: 0;
  height: 5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.controls-bar {
  left: 0;
  bottom: 0;
  z-index: 2;
}

.top-bar {
  left: 0;
  top: 0;
  text-align: center;
  z-index: 2;
}

.sequencer {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 1;
  margin-top: 8rem;
}

.kick-pad,
.snare-pad,
.hihat-pad {
  width: 3rem;
  height: 3rem;
  margin: 2rem 0.5rem;
  cursor: pointer;
  border-radius: 0.5rem;
}

.kick-pad {
  background-color: rgba(224, 83, 83, 0.3);
}

.snare-pad {
  background-color: rgba(74, 181, 230, 0.3);
}

.hihat-pad {
  background-color: rgba(230, 212, 74, 0.3);
}

.kick-pad.active {
  background-color: rgba(224, 83, 83, 1);
}

.snare-pad.active {
  background-color: rgba(74, 181, 230, 1);
}

.hihat-pad.active {
  background-color: rgba(230, 212, 74, 1);
}

.kick-track,
.snare-track,
.hihat-track {
  display: flex;
  align-items: center;
  width: 70%;
  justify-content: flex-start;
  margin-top: 1rem;
}

.kick,
.hihat,
.snare {
  display: flex;
}

.track-control {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex: 1;
  margin: 0rem 2rem;
  font-size: 0.8em;
}

.track-control h1 {
  border: 6px solid #1f1f1f;
  padding: 0.5rem;
  border-radius: 0.5rem;
}

.track-control button {
  padding: 0.5rem;
  color: #1f1f1f;
  background-color: rgba(0, 0, 0, 0);
  border: 5px solid #1f1f1f;
  cursor: pointer;
  font: 1rem;
  border-radius: 0.5rem;
  transition: all 0.5s ease;
}

.mute.active {
  opacity: 0.5;
}

.track-control select {
  width: 10rem;
  padding: 0.5rem;
  font-size: 1rem;
  border: none;

  border-radius: 0.5rem;

  color: #1f1f1f;
  background-color: rgba(0, 0, 0, 0);
  border: 5px solid #1f1f1f;
}

.pad {
  transition: all 0.5s ease;
}

.pad:hover {
  transform: scale(1.2);
}

.sequencer-controls {
  display: flex;
  align-items: center;
  justify-content: space-evenly;
  width: 100%;
}

.sequencer-controls .play,
.reset,
.github-link {
  margin: 0 1rem;
  padding: 1rem;
  font-size: 1rem;
  width: 4rem;
  border: none;
  color: #1f1f1f;
  background-color: rgba(0, 0, 0, 0);
  border: 5px solid #1f1f1f;
  cursor: pointer;
  border-radius: 0.5rem;
}

.sequencer-controls button.play {
  width: 6rem;
}

.tempo {
  width: 60%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tempo .tempo-slider {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  height: 0.5rem;
  border-radius: 2rem;
  margin: 1rem 0rem;
  cursor: pointer;
  width: 50%;
  border: 0.1px solid #1f1f1f;
}

.tempo-slider::-webkit-slider-thumb,
.tempo-slider::-moz-range-thumb {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  width: 1.5rem;
  height: 1.5rem;
  background: rgb(65, 182, 236);
  border: none;
  cursor: pointer;
}

.tempo .tempo-number {
  font-size: 1.5rem;
}

.tempo h2 {
  margin-right: 1rem;
}

/* animations */

@keyframes play-track {
  from {
    transform: scale(1);
  }

  to {
    transform: scale(1.2);
  }
}

/* queries */

@media screen and (max-width: 1024px) {
  .pad {
    margin: 0 0.2rem;
  }
}

@media screen and (max-width: 870px) {
  .sequencer {
    align-items: flex-start;
    justify-content: flex-starts;
  }

  .track-control {
    margin: none;
  }

  .track-control h1 {
    width: 3.5rem;
    height: 3.5rem;
    font-size: 1rem;
  }
}